Across
- 1. Place where substances are exchanged betwee
- 3. Take up oxygen in the blood and deliver it to cells elsewhere in the body.
- 4. Stated that all cells come from preexisting cells (last name).
- 5. The liquid part of blood.
- 6. Blood vessels that carry blood away from the heart.
- 8. Blood vessels that carry blood back to the heart.
- 10. The body's disease fighters.
- 12. Hollow, muscular organ that pumps blood throughout the body.
- 13. Said that all plants are made of cells.
- 14. Flaps of tissue that prevent blood from flowing backward.
Down
- 1. Consists of the heart, blood vessels, and blood.
- 2. Part of blood that is responsible for clotting.
- 7. blood and body cells.
- 9. Discovered that all animals were composed of cells (last name).
- 11. First person to see bacteria from dental scraping called the small organisms that he saw animalcules (last name only).